CN105197115B - Passage in a kind of lightweight automobile - Google Patents
Passage in a kind of lightweight automobile Download PDFInfo
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- CN105197115B CN105197115B CN201510652147.3A CN201510652147A CN105197115B CN 105197115 B CN105197115 B CN 105197115B CN 201510652147 A CN201510652147 A CN 201510652147A CN 105197115 B CN105197115 B CN 105197115B
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- front floor
- passage
- middle passage
- cavity
- occlusal surface
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Abstract
The invention discloses passage in a kind of lightweight automobile, the longitudinal section of described middle passage is a few font, the both sides of middle passage are connected to the front floor of automobile, the front floor of described middle passage both sides extends to middle channel middle respectively and forms cavity with middle passage respectively, the dual-side of middle passage respectively with corresponding front floor welded, the end on front floor is respectively welded in middle channel middle. In lightweight automobile of the present invention, channel quality is light, structural strength is high.
Description
Technical field
The present invention relates to field of car body structure, particularly relate to passage in a kind of lightweight automobile.
Background technology
Along with the development of automobile industry, the safety of automobile and lightweight have become the important theme of automobile research and development, and in automobile, channel design is as the important component part of vehicle body, relates to automobile safety in front, side collision process. Generally in this automobile, channel design is bigger and complicated, therefore how when ensureing collision safety performance, it is achieved the lightweight of channel design in automobile, will become a challenge of channel design design in automobile.
In current automobile, the design of passage assembly is generally middle channel body and middle passage buttress brace, middle channel body longitudinally disposed (Fig. 1), its cross section is " several " font (Fig. 2), middle passage connects front floor by the flange of both sides, described middle passage assembly is strengthened plate by middle channel body and 2��3 and is formed, middle passage and front floor body are linked to be integrally welded, add intensity. When vehicle body generation head-on crash, impact force is delivered to front longitudinal floor beam by chassis runner, then passes to rear floor, and is distributed to whole floor simultaneously, what whole floor and middle passage were formed has integrally effectively formed a big frame, and dispersion force serves the effect of key. When vehicle body generation side collision, impact force passes to before floor by threshold and middle passage, then passes to opposite side floor, carries out the dispersion of power on whole floor. Simultaneously, described middle passage buttress brace increases middle passage assembly cross-sectional height and area, improves the intensity of middle passage assembly, and closed cavity is when frontal crash of vehicles and side collision, the load of collision there is is good guide effect, improves rigidity and the security performance of automobile.
But, in tradition, passage design there is also some shortcoming following while there is above-mentioned advantage:
Shortcoming 1: middle passage is excessively independent, in tradition, passage only welds relation at two side flanging place the three unities with floor, comparatively speaking, junction is still weaker, middle passage is still relatively independent with floor, in such process collided, unavoidable intensity is not as foot, has the probability that fracture occurs. Such intensity can not effectively ensure.
Shortcoming 2: in tradition when the design of passage, add buttress brace, increase middle passage assembly cross-sectional height and area, improve the intensity of middle passage assembly, closed cavity is when car crass simultaneously, the load of collision is had good guide effect, improves the security performance of automobile.But, buttress brace thickness is thicker could meet requirement of strength, the 1.2mm of general thickness design herein, as it is shown on figure 3, thus greatly add the weight of middle passage, has also been increased by the weight of car load.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides passage in the lightweight automobile that a kind of quality is lighter, intensity is higher.
The present invention is achieved in that
Passage in a kind of lightweight automobile, the longitudinal section of described middle passage is a few font, the both sides of middle passage are connected to the front floor of automobile, the front floor of described middle passage both sides extends to middle channel middle respectively and forms cavity with middle passage respectively, the dual-side of middle passage respectively with corresponding front floor welded, the end on front floor is respectively welded in middle channel middle.
Further, described front floor includes front floor main body, front floor front beam, front Floor rear crossbeam, and the two ends of described front floor front beam and front Floor rear crossbeam are connected to the threshold of automobile and middle passage.
Further, the two ends of described middle passage respectively with corresponding front floor welded, formed and seal cavity, described middle passage is provided with the valve inside being communicated in described sealing cavity, seal cavity and extracted inner air by vacuum extractor, form negative pressure cavity.
Further, the air pressure in described sealing cavity is lower than 1.01325 �� 10^3Pa.
Further, the weld on described front floor and the laminating of middle passage, the length of laminating is more than 3cm, middle passage is provided with corrugated first occlusal surface with joint place, front floor, arrange second occlusal surface corresponding with described first occlusal surface on described front floor, described first occlusal surface and the second occlusal surface are mutually twisted together.
Further, on described front floor, corresponding described sealing cavity place is provided with the corrugated structure reinforcement of horizontal expansion.
Further, described middle passage and the solder joint width at front floor welded place are more than 5mm.
The invention have the benefit that in lightweight automobile of the present invention that passage eliminates before, during and after middle passage three and strengthens plates, alleviate the weight of car load, reach the light-weighted purpose of car load, simultaneously, described front floor extends to middle channel middle respectively and forms cavity with middle passage respectively, and whole front floor and middle passage have been linked to be one, too increase the intensity on floor, it is effectively ensured the intensity and toughness of whole middle passage, it is ensured that the safety of occupant.
Accompanying drawing explanation
Fig. 1 is the connection diagram on middle passage and front floor in prior art;
Fig. 2 is the cross section view of Fig. 1;
Fig. 3 is the profile of middle passage in prior art;
Fig. 4 is the profile of middle passage in an embodiment of the present invention;
Fig. 5 is the profile of middle passage in another embodiment of the present invention;
Fig. 6 is the partial enlarged drawing of part A in Fig. 5;
Fig. 7 is the partial enlarged drawing of part B in Fig. 5.
Label declaration:
Passage in 1-; The front floor of 2-; 11,12-welding edge; 3-cavity;
13-valve inside; 14-the first occlusal surface; 21-the second occlusal surface.
Detailed description of the invention
By describing the technology contents of the present invention, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Embodiment one
Passage in embodiment of the present invention one lightweight automobile, refer to Fig. 4, profile for passage middle in embodiment of the present invention, the longitudinal section of described middle passage 1 is a few font, the both sides of middle passage 1 are connected to the front floor 2 of automobile, described front floor 2 includes front floor main body, front floor front beam, front Floor rear crossbeam, and the two ends of described front floor front beam and front Floor rear crossbeam are connected to the threshold of automobile and middle passage.Wherein, front floor 2 is arranged at the lower section of middle passage 1, described middle passage 1 both sides are provided with flange, the front floor 2 of middle passage both sides extends in the middle part of middle passage 1 respectively and forms cavity 3 with middle passage 1 respectively, the dual-side of middle passage 1 welds with corresponding front floor 2 (its welding edge is the welding edge 11 in Fig. 4) respectively, and the end on front floor 2 is respectively welded the middle part (its welding edge is the welding edge 12 in Fig. 4) in middle passage 1.
For the weld strength of passage 1 in ensureing with front floor 2, in a more excellent embodiment, the solder joint width at described middle passage and front floor welded place is more than 5mm.
In the present embodiment, before eliminating passage, in, strengthen plate for latter three, alleviate the weight of car load to a certain extent, reach the light-weighted purpose of car load, simultaneously, the front floor of described middle passage both sides extends to middle channel middle respectively and forms cavity with middle passage respectively, the dual-side of middle passage respectively with corresponding front floor welded, the end on front floor is respectively welded in middle channel middle, described middle passage and front floor body have been actually formed a frame beam structure, through whole front floor, add the intensity on whole front floor, simultaneously because whole front floor and middle passage have been linked to be one, too increase the intensity on floor. so the intensity and toughness that the more effective guarantee of energy is whole in the process of collision scenario, it is ensured that the safety of occupant.
Embodiment two
Refer to Fig. 5, it is different in that with embodiment one, in the present embodiment, the both ends of described middle passage 1 are welded with corresponding front floor 2 respectively, make described cavity 3 be formed and seal cavity, and being provided with the valve inside 13 being communicated in described sealing cavity on described middle passage 1 or front floor 2, described sealing cavity extracts its inner air by vacuum extractor, forms negative pressure cavity.
In the present embodiment, the cavity that described middle passage and front floor are formed is welded into sealing cavity, and extract its internal air, form negative pressure cavity, thus bulk strength between passage and front floor in utilizing the effect of atmospheric pressure to improve, in not changing channel design do not increase yet improve under the premise of any weight in the structural strength of passage. Tests prove that, described negative pressure cavity makes the resistance performance on middle passage 1 and front floor 2 improve 15%��18%. , when the air pressure in described sealing cavity is 1.01325 �� 10^3Pa, the resistance performance on middle passage 1 and front floor 2 improves 18%; When the air pressure in described sealing cavity is 1.01325 �� 10^4Pa, the resistance performance on middle passage 1 and front floor 2 improves 13%; When the air pressure in described sealing cavity is 5 �� 10^2Pa, the resistance performance on middle passage 1 and front floor 2 improves 15%.
Further, incorporated by reference to consulting Fig. 6 and Fig. 7, for bond strength between passage 1 and front floor 2 in improving, it is prevented that when side collision, relative sliding between middle passage 1 and front floor 2. The weld (namely in Fig. 5 near welding edge 11 and 12) on described front floor 2 and middle passage 1 are fitted, preferably, the length of laminating is more than 3cm, and, middle passage 1 is provided with corrugated first occlusal surface 14 with joint place, front floor 2, arrange second occlusal surface 21 corresponding with described first occlusal surface on described front floor 2, described first occlusal surface and the second occlusal surface are mutually twisted together; Further, on described front floor, corresponding described sealing cavity place is provided with the corrugated structure reinforcement of horizontal expansion.
Owing to described middle passage 1 and the cavity 3 surrounded described in front floor 2 are the cavitys of negative pressure, under the effect of atmospheric pressure, together with fitting tightly in joint place with front floor 2 at middle passage 1, so that the first occlusal surface 14 and the second occlusal surface being interlocked tightly, thus substantially increasing the bond strength of middle passage 1 and front floor 2. In the present embodiment, described middle passage 1 and front floor 2 are not only by being welded to connect, atmospheric pressure is also utilized to combine with waveform occlusal surface the bonding strength improved between the two, thus in further increasing under the premise increasing any structure and weight the structural strength of passage, it is achieved more lightweight, high intensity effect.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (6)
1. passage in a lightweight automobile, the longitudinal section of described middle passage is a few font, the both sides of middle passage are connected to the front floor of automobile, it is characterized in that, the front floor of described middle passage both sides extends to middle channel middle respectively and forms cavity with middle passage respectively, the dual-side of middle passage respectively with corresponding front floor welded, the end on front floor is respectively welded in middle channel middle;
The two ends of described middle passage respectively with corresponding front floor welded, formed and seal cavity, described middle passage is provided with the valve inside being communicated in described sealing cavity, seal cavity and extracted inner air by vacuum extractor, form negative pressure cavity.
2. passage in lightweight automobile according to claim 1, it is characterized in that, described front floor includes front floor main body, front floor front beam, front Floor rear crossbeam, and the two ends of described front floor front beam and front Floor rear crossbeam are connected to the threshold of automobile and middle passage.
3. passage in lightweight automobile according to claim 1, it is characterised in that the air pressure in described sealing cavity is lower than 1.01325 �� 10^3Pa.
4. passage in the lightweight automobile according to claim 1 or 3, it is characterized in that, the weld on described front floor and the laminating of middle passage, the length of laminating is more than 3cm, middle passage is provided with corrugated first occlusal surface with joint place, front floor, arrange second occlusal surface corresponding with described first occlusal surface on described front floor, described first occlusal surface and the second occlusal surface are mutually twisted together.
5. passage in lightweight automobile according to claim 4, it is characterised in that on described front floor, corresponding described sealing cavity place is provided with the corrugated structure reinforcement of horizontal expansion.
6. passage in lightweight automobile according to claim 1, it is characterised in that the solder joint width at described middle passage and front floor welded place is more than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652147.3A CN105197115B (en) | 2015-10-10 | 2015-10-10 | Passage in a kind of lightweight automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652147.3A CN105197115B (en) | 2015-10-10 | 2015-10-10 | Passage in a kind of lightweight automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105197115A CN105197115A (en) | 2015-12-30 |
| CN105197115B true CN105197115B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510652147.3A Active CN105197115B (en) | 2015-10-10 | 2015-10-10 | Passage in a kind of lightweight automobile |
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| CN (1) | CN105197115B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891328B (en) * | 2018-06-27 | 2023-08-22 | 宁波帅特龙集团有限公司 | Automatic locking structure of lifting cup stand |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201165251Y (en) * | 2007-12-14 | 2008-12-17 | 奇瑞汽车股份有限公司 | Automobile lower body construction |
| CN201220694Y (en) * | 2008-05-07 | 2009-04-15 | 奇瑞汽车股份有限公司 | Automobile underbody structure |
| JP2011218898A (en) * | 2010-04-06 | 2011-11-04 | Toyoda Iron Works Co Ltd | Interior component for vehicle |
| DE202013105973U1 (en) * | 2013-12-03 | 2014-02-17 | Beiqi Foton Motor Co., Ltd. | Center channel connection assembly and body with such center channel connection assembly |
-
2015
- 2015-10-10 CN CN201510652147.3A patent/CN105197115B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201165251Y (en) * | 2007-12-14 | 2008-12-17 | 奇瑞汽车股份有限公司 | Automobile lower body construction |
| CN201220694Y (en) * | 2008-05-07 | 2009-04-15 | 奇瑞汽车股份有限公司 | Automobile underbody structure |
| JP2011218898A (en) * | 2010-04-06 | 2011-11-04 | Toyoda Iron Works Co Ltd | Interior component for vehicle |
| DE202013105973U1 (en) * | 2013-12-03 | 2014-02-17 | Beiqi Foton Motor Co., Ltd. | Center channel connection assembly and body with such center channel connection assembly |
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| Publication number | Publication date |
|---|---|
| CN105197115A (en) | 2015-12-30 |
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Effective date of registration: 20160329 Address after: 351100 Putian province Fujian City Hanjiang District Jiangkou Town Stone Village Avenue on the west side of Han Li Applicant after: FJ MOTOR GROUP, YUDO NEW-ENERGY AUTOMOBILE Co.,Ltd. Address before: 351115 Putian City, Fujian province Jiangkou Town Hanjiang District Court Road Culvert technology building high-tech zones on the third floor Applicant before: PUTIAN YUNCHI NEW ENERGY AUTOMOBILE RESEARCH INSTITUTE Co.,Ltd. |
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Address after: 351100 west side of LiHan Road, Jiangxi town, Jiangkou Town, Hanjiang District, Putian, Fujian, China Patentee after: Yundu New Energy Automobile Co.,Ltd. Address before: 351100 west side of LiHan Road, Jiangxi town, Jiangkou Town, Hanjiang District, Putian, Fujian, China Patentee before: FJ MOTOR GROUP, YUDO NEW-ENERGY AUTOMOBILE Co.,Ltd. Address after: 351100 west side of LiHan Road, Jiangxi town, Jiangkou Town, Hanjiang District, Putian, Fujian, China Patentee after: Yundu New Energy Vehicle Co.,Ltd. Address before: 351100 west side of LiHan Road, Jiangxi town, Jiangkou Town, Hanjiang District, Putian, Fujian, China Patentee before: Yundu New Energy Automobile Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |